If you have this error you probably installed DHCP server role on your server. Very detailed explanation and solution you can find on Microsoft link https://support.microsoft.com/en-us/kb/2298620 It is the same for Windows Server 2012/2012 R2 version.

If you want to keep things simple all you need to do is add Network Service account on this registry key HKLM\System\CurrentControlSet\Services\VSS\Diag . After you give it full permission this error will be gone.

If you dont see this error in Event log after some time it is fine. If you want to see it again just take network service full permission in the same registry key. This error ususaly happens on DC with DHCP installed. I hope I helped. Just ask. If I have an answer I will post it

Hallo Igor,
the only easy looking solution I found on Internet is yours…
Could you give me a hand at this stage of your discription:
“…..If you want to keep things simple all you need to do is add Network Service account on this registry key HKLM\System\CurrentControlSet\Services\VSS\Diag . …”
OK. Im just there and create a new one….but what? A key? QWORD? …
How to add Network Service account as a DWORD QWORD? What will be the value of it..” could you pass some more info please?
Andrea